FREEPORT, Bahamas -- Duke coach Joanne P. McCallie hopes that her young team can learn something from its last-second loss to Notre Dame.

The seventh-ranked Blue Devils let a 16-point halftime lead slip away as they went cold from the field to start the second half. Duke had a chance to seal the game late, but was unable to prevail, falling 56-54 to No. 4 Notre Dame in the Junkanoo Jam final on Saturday night.

''We don't have fifth-year seniors on our team,'' she said. ''We have a lot of young players. At times, we did some young things. We'll learn, though. This is a great lesson.''

After building a huge first-half lead, the Blue Devils shot just 19 percent from the field in the second half.

''We didn't attack as much,'' McCallie said. ''Obviously they picked up the aggression. It was two different halves, almost the same exact score each half. We did some great things the first half, and they did better things in the second half. A few rebounds here or there, but that's the way the game goes. You have to be ready.''

Natalie Novosel banked in a shot from the foul line with under a second left to complete Notre Dame's rally. The senior guard missed 10 of her first 11 shots before finishing the game with 15 points. Skylar Diggins led the Irish (5-1) with 19.

''This is unbelievable. It's surreal. It's an amazing, amazing feeling,'' Novosel said. ''I almost fell out of bounds. The ball was supposed to go to the middle. I caught the ball and I had my eye on the rim and I knew that's where I was going. I wasn't even trying to get contact for a foul. Just focused on the rim and shot it. I drove right to the foul line and took off with one leg, and used the backboard to my advantage, and I banked it in.''

Trailing 54-51 with 1:35 left, the Irish had three chances to tie the game, but missed three 3-pointers. Kayla McBride got fouled on an offensive rebound and made the first of two free throws to cut the deficit to two.

After Chelsea Gray missed a shot for Duke on the other end, Diggins scored to tie it at 54. Shay Selby missed a shot with 9 seconds left before Novosel's game-winner.

''I thought Natalie Novosel really came alive in the second half, and I thought Skylar played an incredible game,'' Notre Dame coach Muffet McGraw said. ''This is such a huge lift for us, because, I know we were feeling really down on ourselves at halftime, wondering what happened. Then we were able to come together and play as a team. I thought Fraderica Miller was a catalyst. Her defense was incredible. Brittany Mallory made some big defensive stops. Everybody contributed.''

Notre Dame trailed 36-20 at the half, but clamped down on defense. After Haley Peters' layup gave Duke an 18-point lead 45 seconds into the second half, the Blue Devils missed their next 14 shots.

Diggins had six points during a 21-3 run and Novosel scored to tie it at 41.

Gray finally ended an 11 1/2-minute drought for Duke with a layup that gave it a 43-41 edge with 7:48 left.

Neither team could build more than a four-point lead the rest of the way.

With the game tied at 51, Williams made a layup with 2:44 left. After a stop by Duke, Richa Jackson hit one of two free throws with 1:35 left, setting up the exciting finish.

''This is unbelievable,'' McGraw said. ''We played so poorly in the first half. We just couldn't do anything right at either end. We didn't rebound. We couldn't make a shot. And then at halftime, we just said, 'Hey, we're not playing our game.' And they decided they were going to come out and play a little better defense. Then we got some easy baskets because of that.''

The Irish, who matched the biggest rally in school history, missed 11 of their first 12 shots as the Blue Devils raced out to a 15-6 lead.